{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x4da1df758b64c12967533e3c0f38d836f669679ff23960b238617fc952a2385e",
    "signature": "0x9fc5ee32b758f2eca288c616e0e660a32214b7a3e235d542b29201ee7a304e7b6f5262428ac52072ae4362f079d38a57127b9af0ca87ed9f5f32aaff69e482d51b",
    "signer": "0x0Eb68d1ceacF37AbB0D48503E66b8fF2c06E2fdE",
    "userId": "747576419"
  }
}